Author Topic: gas smell when idling  (Read 3051 times)

mdopro1

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  • Mustang: 1968
  • Daily driver: yes
  • Location: canada
gas smell when idling
« on: January 01, 2010, 03:24:45 PM »
my car now gives out unburnt gas smell from the exhaust, specially when i start it. i recently changed my spark plugs. What can I do?

Soaring

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  • 1965 Mustang coupe 289, '03 Mach1, 03 Lariat
  • Mustang: 1965 coupe 289, and 2003 Mach1
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  • Location: Wimberley, Texas
Re: gas smell when idling
« Reply #1 on: January 01, 2010, 04:12:16 PM »
You need to overhaul your carb.  It's running way too rich. 

stang98

  • Guest
Re: gas smell when idling
« Reply #2 on: January 01, 2010, 04:12:30 PM »
Check the actual filler neck. See if the O ring is dry rotted and leaking near the gas tank. I had to replace this piece on both of my stangs. Its under $20 if you do it yourself

jethat

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Re: gas smell when idling
« Reply #3 on: January 07, 2010, 01:02:33 AM »
Is the car jetted for your altitude? If you bought it from some one who had it at a lower altitude the carb need to be rejetted. Carbs also come jetted for sea level so if you high up you'll wanta re jet it.

Soaring

  • Global Moderator
  • *****
  • Posts: 4279
  • Gender: Male
  • 1965 Mustang coupe 289, '03 Mach1, 03 Lariat
  • Mustang: 1965 coupe 289, and 2003 Mach1
  • Daily driver: '03 Ford F-150 Lariat
  • Location: Wimberley, Texas
Re: gas smell when idling
« Reply #4 on: January 07, 2010, 01:41:43 PM »
Like I said before, overhaul the carb. 

 

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